Synopsis
setoptions(ftmachine, cache, tile, gridfunction, padding)
Description
Various less-often-used options for processing can be set.
- ftmachine
- The options for ftmachine are:
- wproject
- W projection algorithm.
- mosaic
- Mosaic gridding.
- cache
- The size of the cache used (in complex pixels) during the
gridding process. The default is to use half the physical memory of
the machine as specified by the aipsrc variable system.resources.memory.
- tile
- The side of the tile (in complex pixels) during the
gridding process.
are supported.
Arguments
ftmachine |
|
Fourier transform machine |
|
|
Allowed: |
String:'ft'|'sd'|'both' | 'wfmemoryft' |
|
|
Default: |
'ft' |
cache |
|
Size of gridding cache in complex pixels |
|
|
Allowed: |
Int |
|
|
Default: |
4194304 |
tile |
|
Size of a gridding tile in pixels (in 1 dimension) |
|
|
Allowed: |
Int |
|
|
Default: |
16 |
gridfunction |
|
Gridding function |
|
|
Allowed: |
String: 'SF'|'BOX' |
|
|
Default: |
'SF' |
padding |
|
Padding factor in image plane (>=1.0) |
|
|
Allowed: |
Float |
|
|
Default: |
1.0 |